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基于微观断裂模型Q235B钢材不同金属本构关系断裂预测研究

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摘要 为了研究Q235B钢材采用微观断裂模型(VGM模型)为断裂判据的情况下,Swift、Voce、Swift-Voce以及DL四种金属本构关系拟合材性对材料断裂预测的影响,文中以王睿智的试验数据为依据对其进行了研究分析。研究表明,用Swift与DL拟合的材性模拟的荷载位移曲线与试验较为接近,Swift相比于Voce、Swift-Voce及DL对材料断裂预测误差更小,VGM模型对钢结构轴拉作用下断裂具有一定的适用性。
出处 《中国水运(下半月)》 2022年第12期39-41,共3页
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